She was very beautiful and enchanting and her role as Margaret More captured the essences of an integrated Catholic life that is an excellent example for laypeople everywhere today.

The following clip is that of the King paying his Lord Chancellor, Saint Thomas More, a visit on his estate. The King encounters More’s family and is introduced to More’s daughter, Margaret, at the :45 mark of the clip. They engage in conversation at the 1:32 mark of the clip. The entire 10 minutes should be viewed to really enjoy her performance and appreciate the film itself:

Here is the trailer to that magnificent Catholic film, A Man For All Seasons:

Post script: I was unable to find out if Susannah York was a Catholic or not, but her portrayal of Margaret More is a fine example of living a Catholic life.